bonesninja
5,000+ posts
CarAudio.com Veteran
hmmm...seems that you are correct, after a little research i found this which supports your statment. good job
http://diyaudiocorner.tripod.com/skin.htm
The skin effect is totally negligible at frequencies lower then 50Khz and a car system is powered with DC, so in a car you don’t have to fear the skin effect. Even the ultra high frequencies of the tweeter wires aren’t high enough to have an audible effect.
Otherwise than power and speaker wire, there can be a major difference concerning SIGNAL wire. This is all the wire between your head unit’s output and the amp’s input. In general the lower the signal amplitude, the more care you should take at it. That’s because these wires are conducting a very low power signal. A 0.1 V noise signal can easily mutilate a 1V music signal so that you get a very poor signal to noise ratio of 20 dB. When this same 0.1V noise signal happens at the output of a 100 W RMS power amp, you can hear it much harder : 100W RMS@4 ohm gives 20 V RMS at the speaker terminal. This gives a signal to noise ratio of 46 dB.
Also, any noise or interference picked up in the signal wires will be amplified. Use good quality wire with an adequate shielding. I can’t give a good brand, but most of the top quality brands will also produce good wire to connect their stuff. Make good interconnections and keep them as far away from the power wires as possible.
